Unfortunately I need the "Parameter Set: Quiet" because the other parameter sets return complex object that I don't want to parse. The online help (i.e. at MS Technet) doesn't mention anything where -Quiet isn't supported ....

@David Johnson:
Interestingly, the build of my machine (where -Quiet works) is 6.0.6002.18111, while on the target machine (where it fails), the build is 6.1.6949.0 ... which I presume to be later.

@Dale Harris:
Sorry, but at the time I accepted the soultion, there were 2 anwers not really fitting my problem (-Quiet not working on one system) and one with an acceptable workaround. I seems to be just to accept that answer ... maybe I've been a little fast, but that's life, I think.

I thought I'd write this up for anyone who has a request to create an anonymous whistle-blower-type submission form created using SharePoint 2010 (this would probably work the same for 2013). It's not 100% fool-proof but it's as close as you can get…

In this video, we discuss why the need for additional vertical screen space has become more important in recent years, namely, due to the transition in the marketplace of 4x3 computer screens to 16x9 and 16x10 screens (so-called widescreen format). …